Finding the Fourth Proportional to 917,205,345.12, 1,375,704,987.20 and 253,313,746.08
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Solution
The fourth proportional to 917,205,345.12, 1,375,704,987.20 and 253,313,746.08 is: 379,942,164.16
Step by Step Solution
- Step 1: Write the proportion equation
917,205,345.12 : 1,375,704,987.20 = 253,313,746.08 : x - Step 2: Convert to fraction form
917,205,345.12/1,375,704,987.20 = 253,313,746.08/x - Step 3: Cross multiply
917,205,345.12x = 1,375,704,987.20 × 253,313,746.08 - Step 4: Simplify right side
917,205,345.12x = 348,484,983,808,570,496 - Step 5: Solve for x
x = 348,484,983,808,570,496/917,205,345.12 - Step 6: Final answer
x = 379,942,164.16
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.